While the founder of Woebot Health says that the app is not intended to replace human therapists, for the majority of the world who cannot locate an available psychologist or afford one once found, Woebot aims to offer a “radically accessible” option for mental health care.

Percutaneously implanted devices designed to seal off the left atrial appendage (LAA) have been around for some time, but a recent study of surgical closure of the appendage might have a beneficial effect on sales of these devices despite that the study did not deal directly with these devices. The results were compelling enough to provoke a halt to the study before all patients had reached the projected term of follow-up, and at least one observer said it may be time to study whether more routine use of devices for percutaneous LAA closure is indicated.

Two-year results from the Evolut Low Risk Trial show Medtronic plc’s Evolut transcatheter aortic valve replacement (TAVR) is noninferior to open-heart surgery in younger, healthier aortic stenosis patients. Moreover, the Evolut cohort fared better on certain critical events. Specifically, two-year rates of all-cause mortality or disabling stroke were 4.3% for TAVR patients vs. 6.3% for those undergoing surgical aortic valve repair (SAVR).

To accelerate drug development targeting the pandemic, the FDA issued final guidance May 17 on master protocols for drugs intended to prevent or treat COVID-19 infections. Although the guidance is geared toward developing COVID-19 drugs, the FDA said it expects master protocols to continue to play an important role in addressing the public health needs in future pandemics.